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(No Modelg) 2 Sheets-Sheet 1. G. H. ELLSBURY.

GRAIN SBPARATOR.

No. 339,631. PatentedApr. 13, 1886.

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(No Model.) 2. Sheets-Sheet 2. G. H. ELLSBU-RY.

, GRAIN SEPARATOR. No. 339,631. Patented Apr. 13, 1886.

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GEORGE H. ELLSBURY, OF TOWER CITY, DAKOTA TERRITORY.

GRAIN-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 339,631,datec1 April 13, 1886.

Application filed May 25, i885. Serial No. 167,666. (No model.)

To @ZZ whom, it may concern:

Be it known that I, GEORGE H. ELLsBURY, a citizen of the United States, residing at Tower City, in the Territory of Dakota, have invented a new and useful Improvement in Grain separators, of which the following is a specification. Y

Figure l is a vertical sectional view of the machine. Fig. 2 is a perspective'view of the machine. Fig. 3 is a plan and side View of the screen or sieve.

Similarletters refer to similar parts throughout the several views. f

I make a rectangular or other convenient shaped box, A, and on the sides of the box I Secure one or more slanting partitions, K. Above this partition K, at a proper distance, I secure a screen or sieve, F, also set at an angle, and made of cast metal having ribs beneath to stiil'en the body of the screen. I am aware that metal screens have been used in grainseparators; but I prefer to make my screen ol cast metal having ribs beneath it, as I desire to obtain rigidity and rmness, to prevent saggi n g and an irregularity of surface. The sheet-1netal screen is not suciently rigid to accomplish the purpose, while a cast-metal screen is. This screen F is perforated with round holes just large enough to allow grains of cockie to -pass through them, and the holes are so arranged in the screen that in passing in the direction of the arrow one hole will not immediately succeed the one next preceding it in the same line.

The screen F is so placed in the box A that the lower end projects through the side of the box, and just where it emerges there is a slit made, so that grain may escape through it. Above the screen and at both ends of it, when in position in the box, are arranged two drums, one at each end, asD and D', D'z D3, D4 D5,DG D7. One of the drums, as D, has a prolonged axle, and on said axle is secured a driving-pulley, J, and to the projecting axle of the other drum, as D, and to the feed-roller L is attached a belt, N, as shown in Fig. 2. About the drums D and D is secured a polished steel or metal apron C. This apron is made preferably ol steel, as the hardness of the metal prevents its being worn out by friction, and the rigidity thereof prevents the grains of wheat or .other elongated grain from turning upon their ends, thus holding the grain hat down on the screen, which is very essential in separating cockle or round seed, as they will roll over the screen and drop through the holes. An apron. of canvas or other elastic ,material will not answer the purpose, as the grain is not held irm enough for the purpose of separation, and wheat is allowed to get through the screen. A cleat or strip on the apron feeding the grain to the screen is far more objectionable than a canvas apron, as it does not keep the grain flat at all, which is the object in using an apron and pressure-boards, and t-he drums D and. D are so adjusted that the lower face of the apron comes in contact with the face of the screen F. Between the upper and lower parts of the apron C is a pressure-board, E, which rests upon the apron C, pressing it against'the screen F. Secured to the pressureboard E are springs h, which are also secured to the boardg, which is secured to the sides of the box A. The object ofthe springs h is to keep the apron against the sereen,and yet allow ofthe passage between the screen F and the apron G of bodies of unequal size and shape.

At the upper end of the box A, I place a hopper, B, which is triangular in shape, two of the sides sloping to a point. At the lower end of the hopper I make an opening, which is partially closed by a fluted drum or roller, L. This luted roll L is just above the screen F, and is connected by a small band or belt, N, with the drum D, which imparts to it its motion.

The lower end of the partition Ii projects through the side of the box A, and beneath the projecting end of K is an angular trough, a, which is inclined and slopes toward the funnels c in the pipe M.

Having thus described the parts of my machine I now proceed to describe its operation. Mixed grain is put into the hopper B, running down till it is arrested by the roll L. Motion is imparted to the pulley-wheel J, and that rotates the apron C, which imparts in its turn motion to the drum D', and this, through the belt N, to the iiuted roll L. The revolution of the roll L feeds the grain down into the screen F, and gravity carries it down to the drum D, Where it is caught by the apron and carried down between the apron and the screen F. Thepressure-boards E E E E, springs h 7L h h, aprons C C C C, and screens F F F F keep the grains of Wheat, oats, and

rye on their` iattened sides, While the coekle rolls over and over till it reaches a hole in the screen, when it is forced through and falls upon the inclined partition K, when it rolls out of the slit in the side of the box into the trough a, thence into the pipe M, and is collected. The Wheat or other grain slides over the screen F, and when iinally freed from the apron falls outside of the machine and is collected.

I do not in this` invention lay claim to grainseparators in the broad sense, as I am fully aware that machines of this nature have been constructed with aprons, screens, hoppers,&c.

Vhat I claim is- A grain-separator comprising the hopper B, the fluted roll L, the cast-metal screen F, provided on its under side With stiffening-ribs, the endless steel apron C, the drums D D on which said apron is mounted, means for actuating the feedroll and drums, the pressureboard E, coiled springs h, and resistancefboard g, located between the upper and lower sides of said endless apron, substantially as described.

GEORGE H. ELLSBURY.

In presence of- A. R. NORTHUP, H. HAUPT, Jr. 

